Numerical simulations of shear-thinning Oldroyd-B fluids in curved pipes

The aim of this paper is to present a numerical study of steady generalized Newtonian and generalized Oldroyd-B flows with shear-thinning viscosity in a curved pipe of circular cross section and arbitrary curvature ratio. The combined effects of inertia, viscoelasticity and viscosity are studied, an...

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Detalhes bibliográficos
Autor principal: Arada, Nadir (author)
Outros Autores: Pires, Marília (author), Sequeira, Adélia (author)
Formato: article
Idioma:eng
Publicado em: 2012
Assuntos:
Texto completo:http://hdl.handle.net/10174/4209
País:Portugal
Oai:oai:dspace.uevora.pt:10174/4209
Descrição
Resumo:The aim of this paper is to present a numerical study of steady generalized Newtonian and generalized Oldroyd-B flows with shear-thinning viscosity in a curved pipe of circular cross section and arbitrary curvature ratio. The combined effects of inertia, viscoelasticity and viscosity are studied, and the quantitative and qualitative behavior of the secondary motions are analyzed with respect to the corresponding characteristic parameters.